YOKOGAWA WT200 User Manual page 118

Digital power meter
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Output Format of Harmonic Analysis Data
IM 253421-01E
Data Format
Harmonic analysis data normally consists of a 8-byte header and 11 bytes of data
Header
Data
Header Section
The header section consists of 8 bytes (h1 to h8).
h1
h2
h3
h4
h5
h1 to h3: data type
V__: voltage
A__: Current
DEG: Phase angle between the 1st order voltage and 1st order current
DGV: Phase angle between the 1st order voltage and the 2nd to 50st order voltage
DGA: Phase angle between the 1st order current and the 2nd to 50st order current
PF_: Fundamental power factor (1st order)
HzV: Fundamental frequency of the voltage of the PLL source
HzA: Fundamental frequency of the current of the PLL source
THD: Harmonic distortion (either IEC or CSA)
CNT: Relative harmonic content
MEM: Data number in case of recalling
h4: Element
1: Element 1
h5: Data state
N: normal
I: Overrange
E: No data
h6, h7: Order
01 to 50: Order of fundamental or higher harmonic (up to the maximum analysis
order).
"__" (space) will be assigned in case of frequency, harmonic distortion, power
factor or in case of all computed values of the 1st to 50th order.
h8: Indicates data lag/lead in case of DEG data type. In case of other data types, __
(space) will occur.
G: Lag
D: Lead
Data Section
The data section consists of 11 bytes.
d1
d2
d3
d4
d5
d1: polarity; __ (space) or – (minus)
d2 to d8: mantissa, floating-point number of the maximum six digits
In case of harmonic distortion and relative harmonic content :
d9: %
d10 to d11: __ (space)
In other cases:
d9 to d11: exponent; E–3 → m, E+0, E+3 → k, E+6 → M
h6
h7
h8
W__: Active power
O: Computation overflow
_: Not detectable
d6
d7
d8
d9
d10
10.4 Output Format
P: Peak overflow
d11
10-9
10

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